US Bridges

SR1158 over Beaver Dam Swamp

PoorPosted for load

Columbus County, North Carolina · 0.4 MI.E.JCT.SR1141 · Structure no. 000000000470324

Built
1958
67 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
36 ft
2 main spans
Daily traffic
160
2017 count
Owner
State
State Highway Agency

About this bridge

SR1158 over Beaver Dam Swamp is a wood or timber stringer/multi-beam or girder carrying SR1158 over Beaver Dam Swamp in Columbus County, North Carolina. It was built in 1958, so it is 67 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 160 vehicles a day, roughly 6% of them trucks, projected to reach 320 by 2040. The structure is 36 ft (10.9 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR1158
CrossesBeaver Dam Swamp
Location0.4 MI.E.JCT.SR1141
RouteState Highway 1158
Coordinates34.17237, -78.70542
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating22.9 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length36 ft (10.9 m)
Longest span17 ft (5.1 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2017)
Projected traffic320 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1158 over Beaver Dam Swamp built?

It was built in 1958, making it 67 years old in 2025.

What condition is SR1158 over Beaver Dam Swamp in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does SR1158 over Beaver Dam Swamp carry?

About 160 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is SR1158 over Beaver Dam Swamp?

The structure is 36 ft (10.9 m) long with a longest span of 17 ft (5.1 m) and a deck 27 ft wide.

Who owns SR1158 over Beaver Dam Swamp?

It is owned by the State Highway Agency.